Someone help... Boost = no more!

[BlueXtreme]

I have a MY04 WRX and yesterday I received my car back from the shop after getting a 16G EVO III w/ modded stock injectors. Car was running fine and then I got a P0139 code (that's not the problem). This morning on my way to work my car decided it no longer want's to boost. The turbo starts spooling then it just stutters and the boost build just stops. I checked all intercooler piping (perrin fmic), I have checked vacuum lines, my bov lines, I just don't know what is going on here. Anyone have any suggestions im all ears. Also yes I have all the supporting mods for this set-up. Tuned at agile.

[Kjott21]

I would give Hill and Jeremy a call. They should be able to give you a hand since they worked on it.

[Black05WRX]

do you have a EM? I know when my DSM had the SAFC-2 it would do that, only cuase it was a bad ground, and I had to kick the ECU to make it run again. No joke.

[wrxgtr]

check the wastegate also the shutter could be backpressure on the turbo causeing it to spool backwards breifly

[mxboy15u]

Originally Posted by wrxgtr

check the wastegate also the shutter could be backpressure on the turbo causeing it to spool backwards breifly

I do not understand how a wastegate could cause the turbo to spool backwards...or how that would cause him to lose boost.